I ran across this blog about the difference between food photographed for advertisements and the real food. I hope you find it interesting too.
http://theonlinephotographer.typepad.com/the_online_photographer/2012/06/information-or-disguise.html
Included in the comments is this link, with additional illustrations and commentary.
http://www.alphaila.com/articles/failure/fast-food-false-advertising-vs-reality/
I really like looking at food pictures but have been extremely disappointed when I see the real food. Once, at Carls Jr I believe, I actually took a food item back and complained that the picture looked appealing but my burger looked nothing like it. I demanded a refund. After the manager stopped laughing she gave me money and asked me to never return.
Has anyone else had this disappointment, and has anyone else actually complained about 'the real food"?
